Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
GRAIN-ORIENTED MAGNETIC STEEL SHEET, METHOD FOR MANUFACTURING GRAIN-ORIENTED MAGNETIC STEEL SHEET, AND ANNEALING SEPARATING AGENT USED FOR MANUFACTURING GRAIN-ORIENTED MAGNETIC STEEL SHEET
Grain-oriented electrical steel sheet excellent in magnetic properties and excellent in adhesion of primary coating to steel sheet provided with a base metal steel sheet having a predetermined chemical composition and a primary coating formed on a surface of the base metal steel sheet and containing Mg2SiO4 as a main constituent, where a peak position of Al emission intensity obtained when performing elemental analysis by glow discharge optical emission spectrometry from a surface of the primary coating in a thickness direction of the grain-oriented electrical steel sheet is arranged within a range of 2.4 to 12.0 µm from the surface of the primary coating in the thickness direction, a number density of Al oxides at the peak position of Al emission intensity and of a size of 0.2 µm or more in terms of a circle equivalent diameter based on the area is 0.03 to 0.18/µm2 , and, in a plurality of Al oxides in an observed region in an observed region of 30 µm×50 µm at the peak position of Al emission intensity, a total cross-sectional area of identified Al oxides with cross-sectional areas of 0.4 to 10.0 µm2 is 75.0% or more of the total cross-sectional area of all Al oxides in the observed region.
GRAIN-ORIENTED MAGNETIC STEEL SHEET, METHOD FOR MANUFACTURING GRAIN-ORIENTED MAGNETIC STEEL SHEET, AND ANNEALING SEPARATING AGENT USED FOR MANUFACTURING GRAIN-ORIENTED MAGNETIC STEEL SHEET
Grain-oriented electrical steel sheet excellent in magnetic properties and excellent in adhesion of primary coating to steel sheet provided with a base metal steel sheet having a predetermined chemical composition and a primary coating formed on a surface of the base metal steel sheet and containing Mg2SiO4 as a main constituent, where a peak position of Al emission intensity obtained when performing elemental analysis by glow discharge optical emission spectrometry from a surface of the primary coating in a thickness direction of the grain-oriented electrical steel sheet is arranged within a range of 2.4 to 12.0 µm from the surface of the primary coating in the thickness direction, a number density of Al oxides at the peak position of Al emission intensity and of a size of 0.2 µm or more in terms of a circle equivalent diameter based on the area is 0.03 to 0.18/µm2 , and, in a plurality of Al oxides in an observed region in an observed region of 30 µm×50 µm at the peak position of Al emission intensity, a total cross-sectional area of identified Al oxides with cross-sectional areas of 0.4 to 10.0 µm2 is 75.0% or more of the total cross-sectional area of all Al oxides in the observed region.
GRAIN-ORIENTED MAGNETIC STEEL SHEET, METHOD FOR MANUFACTURING GRAIN-ORIENTED MAGNETIC STEEL SHEET, AND ANNEALING SEPARATING AGENT USED FOR MANUFACTURING GRAIN-ORIENTED MAGNETIC STEEL SHEET
KORNORIENTIERTES ELEKTROSTAHLBLECH, VERFAHREN ZUR HERSTELLUNG KORNORIENTIERTER MAGNETISCHER STAHLBLECHE UND GLÜHTRENNMITTEL ZUR HERSTELLUNG VON KORNORIENTIERTEM MAGNETISCHEM STAHLBLECH
TÔLE EN ACIER ÉLECTROMAGNÉTIQUE ORIENTÉ AINSI QUE PROCÉDÉ DE FABRICATION DE CELLE-CI, ET AGENT DE SÉPARATION DE RECUIT MIS EN ?UVRE DANS LA FABRICATION DE CETTE TÔLE EN ACIER
YAMAGATA RYUTARO (Autor:in) / TANAKA ICHIRO (Autor:in)
28.09.2022
Patent
Elektronische Ressource
Englisch
| Europäisches Patentamt | 2022
| Europäisches Patentamt | 2022
| Europäisches Patentamt | 2022